Tony only notices he's not alone when Yseult heralds herself with foot fall, but he doesn't snap out of a reverie, or pretend at something. Just a slight shift in his lean, arms folded, a breath in that's held before it's let out.

"Hope so," he says. "Time's running out on getting another one of these, you know."

And where would his legacy be if his one child decided not to be a weird savant too. But there she is, building normal little kid things, already the best person he knows. He hasn't even had a lot of time to imagine what she'll do next, with him gone.

Tony glances Yseult's way, acknowledging her presence more fully, maybe indicating that he's not completely lost it. "She's even cuter when corporeal, if you can believe." The delivery is the same clip and flippancy as always, but there's no disguising the underyling strain.